Grubber.



No. 784,791. PATENTED MAR. 14, 1905.

' w. 0. HOUSE.

GRUBBER.

APFLIOATION FILED our. 21 .19o4.

Patented March 14, 1905.

PATENT OFFICE.

IVILLIAM 0. HOUSE, OF VIENNA, TEXAS.

GRUBBER.

SPECIFICATION forming part of Letters Patent No; 784,791; dated March14, 1905.

Application filed October 21, 1904:. Serial No. 229,453.

1'0 (.tll whom it may concern:

Be itknown that I, WILLIAM (J. House, a citizen of theUnitedStates,residing at Vienna, in the county of Lavaca and State of Texas,have invented certain new and useful Improvements in Grubbers, of whichthe following is a specification.

My invention relates to grubbers, and has for its object to produce amachine of this class that will be simple and at the same timeeffective.

In the drawings, Figure 1 is a side elevation of a grubber embodying myinvention, one of the wheels thereof being removed. Fig. 2 is a frontelevation of the same.

1 represents an axle of approved construction mounted upon the wheels 2,said wheels being suitably secured to said axle.

3 is a suitable drafting-tongue secured in any manner to the axle.

4 represents frames having a central opening, through which the axle 1is adapted to pass, whereby the frames are revolubly mounted upon saidaxle. These frames are provided with radially-extending arms 5 and 6.

7 is a grubbing tool or point secured between the arms 6 by means of thebolts 8, said point or tool being of any approved construction.

9 is a counterbalancing or weighted lever, the upper end of which issecured, by means of the bolt 10, between the arms 5, said lever 9 beingheld against movement independent of the grubbing-tool by means of atie-rod 11, one end of which is secured to the lever 9, while the otherend is secured to the grubbing-tool 7, as clearly shown in Fig. 1, fromwhich it will'be seen that the parts move in unison- As will be seenfrom Fig. 1, the grubbingtool extends below the plane of the wheels inorder that it may penetrate the ground. In the ordinary operation of thegrubber the grubbing point or tool 7 is drawn through the soil and willcut or sever the average root or other obstruction; but should itencounter a root or obstruction too large for it to sever the continuedmovement of the team will cause the grubbing-tool to move backward andupward in the direction of the arrow, thereby raising thecounterbalancing or weighted lever 9, and thus permit the grubbing-toolto ride over or pass the obstruction without retarding the progress ofthe team. As soon as the grubbing-tool has passed the obstruction thecounterbalancing or Weighted lever 9 will immediately assume its normalposition, thereby forcing the grubbing-tool in an opposite position, asshown in Fig. 1. It of course is obvious that this may be applied tomachines having any motive power.

I/Vhat I claim, and desire to secure by Letters Patent, is-- 1. In agrubbing-machine, the combination with the axle and the wheels thereon,of a frame journaled on the axle and having arms extending above andbelow the same, a grubbingpoint secured to the end of the lower arm, andmeans secured to the upper arm for holding the grubbing-point normallyin engagement With the ground and permitting said point to move out ofengagement with the ground when it meets an obstruction.

2. In a grubbing-machine, the combination with the axle and the wheelsthereon, of a frame journaled on the axle and having arms extendingabove and below the same, a grubbingpoint secured to the end of thelower arm,

and a weighted lever secured at its upper end to the upper arm andentending downwardly and rearwardly from the arm, the free end beingadapted to travel on the ground.

3. In a grubbing-machine, the combination of a grubbing-tool revolublymounted, and a weighted lever secured at its upper end to the tool andat its lower end adapted to travel on the ground in the rear of thetool.

I. In a grubbing-machine, the combination with a wheeled axle, of framesrevolubly mounted thereon, arms extending radially from said frames, agrubbing-tool secured between a pair of said arms, a weighted leversecured between another pair of said frames and depending therefrom, anda tie-rod connecting said lever with said grubbing-tool.

In testimony whereof I affix my signature in presence of two witnesses.

IVILLIAM 0. HOUSE. l/Vitnesses:

LEVI KRosoIIEL, A. F. GROEBER.

